Granted Patent
Utility
US 6,036,179 · App. 08/996,418
Air spring containing an active device and a suspension assembly and method using
Inventor:
John D. Rensel
Patented Case
View Patent ↗
Granted: Mar 14, 2000
Filed: Dec 22, 1997
Inventor
John D. Rensel
Assignee (at issue)
Bridgestone Firestone
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.